






"""simple docstring"""
from typing import Any



class        UpperCamelCase__ :







    """simple docstring"""







    def __init__(		self :	Tuple				,    UpperCamelCase_ :	Any ):





           '''simple docstring'''

           __magic_name__      				=    data
           __magic_name__      				=    None







    def __repr__(		self :	Tuple ):





           '''simple docstring'''

           return f"""Node({self.data})"""



class        UpperCamelCase__ :







    """simple docstring"""







    def __init__(		self :	List[Any] ):





           '''simple docstring'''

           __magic_name__      				=    None







    def __iter__(		self :	Optional[Any] ):





           '''simple docstring'''

           __magic_name__      				=    self.head
           while node:
                  yield node.data
                  __magic_name__      				=    node.next







    def __len__(		self :	List[Any] ):





           '''simple docstring'''

           return sum(1 for _ in self )







    def __repr__(		self :	Union[str, Any] ):





           '''simple docstring'''

           return "->".join([str(UpperCamelCase_ ) for item in self] )







    def __getitem__(		self :	List[Any]				,    UpperCamelCase_ :	int ):





           '''simple docstring'''

           if not 0 <= index < len(self ):
                  raise ValueError('list index out of range.' )
           for i, node in enumerate(self ):
                  if i == index:
                         return node
           return None







    def __setitem__(		self :	Any				,    UpperCamelCase_ :	int				,    UpperCamelCase_ :	Any ):





           '''simple docstring'''

           if not 0 <= index < len(self ):
                  raise ValueError('list index out of range.' )
           __magic_name__      				=    self.head
           for _ in range(UpperCamelCase_ ):
                  __magic_name__      				=    current.next
           __magic_name__      				=    data







    def 				a__			(		self :	List[Any]				,    UpperCamelCase_ :	Any ):





           '''simple docstring'''

           self.insert_nth(len(self )				,    UpperCamelCase_ )







    def 				a__			(		self :	Dict				,    UpperCamelCase_ :	Any ):





           '''simple docstring'''

           self.insert_nth(0				,    UpperCamelCase_ )







    def 				a__			(		self :	Optional[int]				,    UpperCamelCase_ :	int				,    UpperCamelCase_ :	Any ):





           '''simple docstring'''

           if not 0 <= index <= len(self ):
                  raise IndexError('list index out of range' )
           __magic_name__      				=    Node(UpperCamelCase_ )
           if self.head is None:
                  __magic_name__      				=    new_node
           elif index == 0:
                  __magic_name__      				=    self.head  # link new_node to head
                  __magic_name__      				=    new_node
           else:
                  __magic_name__      				=    self.head
                  for _ in range(index - 1 ):
                         __magic_name__      				=    temp.next
                  __magic_name__      				=    temp.next
                  __magic_name__      				=    new_node







    def 				a__			(		self :	Optional[Any] ):  # print every node data





           '''simple docstring'''

           print(self )







    def 				a__			(		self :	Optional[Any] ):





           '''simple docstring'''

           return self.delete_nth(0 )







    def 				a__			(		self :	int ):  # delete from tail





           '''simple docstring'''

           return self.delete_nth(len(self ) - 1 )







    def 				a__			(		self :	Optional[Any]				,    UpperCamelCase_ :	int = 0 ):





           '''simple docstring'''

           if not 0 <= index <= len(self ) - 1:  # test if index is valid
                  raise IndexError('List index out of range.' )
           __magic_name__      				=    self.head  # default first node
           if index == 0:
                  __magic_name__      				=    self.head.next
           else:
                  __magic_name__      				=    self.head
                  for _ in range(index - 1 ):
                         __magic_name__      				=    temp.next
                  __magic_name__      				=    temp.next
                  __magic_name__      				=    temp.next.next
           return delete_node.data







    def 				a__			(		self :	str ):





           '''simple docstring'''

           return self.head is None







    def 				a__			(		self :	str ):





           '''simple docstring'''

           __magic_name__      				=    None
           __magic_name__      				=    self.head

           while current:
                  # Store the current node's next node.
                  __magic_name__      				=    current.next
                  # Make the current node's next point backwards
                  __magic_name__      				=    prev
                  # Make the previous node be the current node
                  __magic_name__      				=    current
                  # Make the current node the next node (to progress iteration)
                  __magic_name__      				=    next_node
           # Return prev in order to put the head at the end
           __magic_name__      				=    prev


def 							A						(				)    ->		None:

       """simple docstring"""





       __magic_name__      				=    LinkedList()
       assert linked_list.is_empty() is True
       assert str(__snake_case  ) == ""

       try:
              linked_list.delete_head()
              raise AssertionError  # This should not happen.
       except IndexError:
              assert True  # This should happen.

       try:
              linked_list.delete_tail()
              raise AssertionError  # This should not happen.
       except IndexError:
              assert True  # This should happen.

       for i in range(1_0  ):
              assert len(__snake_case  ) == i
              linked_list.insert_nth(__snake_case ,     i + 1  )
       assert str(__snake_case  ) == "->".join(str(__snake_case  ) for i in range(1 ,     1_1  )  )

       linked_list.insert_head(0  )
       linked_list.insert_tail(1_1  )
       assert str(__snake_case  ) == "->".join(str(__snake_case  ) for i in range(0 ,     1_2  )  )

       assert linked_list.delete_head() == 0
       assert linked_list.delete_nth(9  ) == 1_0
       assert linked_list.delete_tail() == 1_1
       assert len(__snake_case  ) == 9
       assert str(__snake_case  ) == "->".join(str(__snake_case  ) for i in range(1 ,     1_0  )  )

       assert all(linked_list[i] == i + 1 for i in range(0 ,     9  )  ) is True

       for i in range(0 ,     9  ):
              __magic_name__      				=    -i
       assert all(linked_list[i] == -i for i in range(0 ,     9  )  ) is True

       linked_list.reverse()
       assert str(__snake_case  ) == "->".join(str(__snake_case  ) for i in range(-8 ,     1  )  )


def 							A						(				)    ->		None:

       """simple docstring"""





       __magic_name__      				=    [
           -9,
           1_0_0,
           Node(7_7_3_4_5_1_1_2  ),
           'dlrow olleH',
           7,
           5_5_5_5,
           0,
           -192.55555,
           'Hello, world!',
           77.9,
           Node(1_0  ),
           None,
           None,
           12.20,
       ]
       __magic_name__      				=    LinkedList()

       for i in test_input:
              linked_list.insert_tail(__snake_case  )

       # Check if it's empty or not
       assert linked_list.is_empty() is False
       assert (
           str(__snake_case  ) == "-9->100->Node(77345112)->dlrow olleH->7->5555->0->"
           "-192.55555->Hello, world!->77.9->Node(10)->None->None->12.2"
       )

       # Delete the head
       __magic_name__      				=    linked_list.delete_head()
       assert result == -9
       assert (
           str(__snake_case  ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
           "Hello, world!->77.9->Node(10)->None->None->12.2"
       )

       # Delete the tail
       __magic_name__      				=    linked_list.delete_tail()
       assert result == 12.2
       assert (
           str(__snake_case  ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
           "Hello, world!->77.9->Node(10)->None->None"
       )

       # Delete a node in specific location in linked list
       __magic_name__      				=    linked_list.delete_nth(1_0  )
       assert result is None
       assert (
           str(__snake_case  ) == "100->Node(77345112)->dlrow olleH->7->5555->0->-192.55555->"
           "Hello, world!->77.9->Node(10)->None"
       )

       # Add a Node instance to its head
       linked_list.insert_head(Node('Hello again, world!'  )  )
       assert (
           str(__snake_case  )
           == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
           "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None"
       )

       # Add None to its tail
       linked_list.insert_tail(__snake_case  )
       assert (
           str(__snake_case  )
           == "Node(Hello again, world!)->100->Node(77345112)->dlrow olleH->"
           "7->5555->0->-192.55555->Hello, world!->77.9->Node(10)->None->None"
       )

       # Reverse the linked list
       linked_list.reverse()
       assert (
           str(__snake_case  )
           == "None->None->Node(10)->77.9->Hello, world!->-192.55555->0->5555->"
           "7->dlrow olleH->Node(77345112)->100->Node(Hello again, world!)"
       )


def 							A						(				)    ->		Any:

       """simple docstring"""





       from doctest import testmod

       testmod()

       __magic_name__      				=    LinkedList()
       linked_list.insert_head(input('Inserting 1st at head '  ).strip()  )
       linked_list.insert_head(input('Inserting 2nd at head '  ).strip()  )
       print('\nPrint list:'  )
       linked_list.print_list()
       linked_list.insert_tail(input('\nInserting 1st at tail '  ).strip()  )
       linked_list.insert_tail(input('Inserting 2nd at tail '  ).strip()  )
       print('\nPrint list:'  )
       linked_list.print_list()
       print('\nDelete head'  )
       linked_list.delete_head()
       print('Delete tail'  )
       linked_list.delete_tail()
       print('\nPrint list:'  )
       linked_list.print_list()
       print('\nReverse linked list'  )
       linked_list.reverse()
       print('\nPrint list:'  )
       linked_list.print_list()
       print('\nString representation of linked list:'  )
       print(__snake_case  )
       print('\nReading/changing Node data using indexing:'  )
       print(F"""Element at Position 1: {linked_list[1]}"""  )
       __magic_name__      				=    input('Enter New Value: '  ).strip()
       print('New list:'  )
       print(__snake_case  )
       print(F"""length of linked_list is : {len(__snake_case  )}"""  )


if __name__ == "__main__":
 main()







"""simple docstring"""
import json
from typing import List, Optional, Tuple

from tokenizers import normalizers

from ...tokenization_utils_fast import PreTrainedTokenizerFast
from .tokenization_lxmert import LxmertTokenizer


snake_case : List[Any]     		=		{"""vocab_file""": """vocab.txt""", """tokenizer_file""": """tokenizer.json"""}

snake_case : List[Any]     		=		{
    """vocab_file""": {
        """unc-nlp/lxmert-base-uncased""": """https://huggingface.co/unc-nlp/lxmert-base-uncased/resolve/main/vocab.txt""",
    },
    """tokenizer_file""": {
        """unc-nlp/lxmert-base-uncased""": (
            """https://huggingface.co/unc-nlp/lxmert-base-uncased/resolve/main/tokenizer.json"""
        ),
    },
}

snake_case : Optional[int]     		=		{
    """unc-nlp/lxmert-base-uncased""": 5_1_2,
}

snake_case : List[Any]     		=		{
    """unc-nlp/lxmert-base-uncased""": {"""do_lower_case""": True},
}



class        UpperCamelCase__ (				a_):







    """simple docstring"""
    __UpperCAmelCase           = VOCAB_FILES_NAMES
    __UpperCAmelCase           = PRETRAINED_VOCAB_FILES_MAP
    __UpperCAmelCase           = PRETRAINED_INIT_CONFIGURATION
    __UpperCAmelCase           = PRETRAINED_POSITIONAL_EMBEDDINGS_SIZES
    __UpperCAmelCase           = LxmertTokenizer







    def __init__(		self :	Union[str, Any]				,    UpperCamelCase_ :	List[str]=None				,    UpperCamelCase_ :	Dict=None				,    UpperCamelCase_ :	Optional[int]=True				,    UpperCamelCase_ :	Dict="[UNK]"				,    UpperCamelCase_ :	str="[SEP]"				,    UpperCamelCase_ :	Dict="[PAD]"				,    UpperCamelCase_ :	Optional[int]="[CLS]"				,    UpperCamelCase_ :	Any="[MASK]"				,    UpperCamelCase_ :	Any=True				,    UpperCamelCase_ :	List[Any]=None				,    **UpperCamelCase_ :	Dict				,    ):





           '''simple docstring'''

           super().__init__(
               UpperCamelCase_				,    tokenizer_file=UpperCamelCase_				,    do_lower_case=UpperCamelCase_				,    unk_token=UpperCamelCase_				,    sep_token=UpperCamelCase_				,    pad_token=UpperCamelCase_				,    cls_token=UpperCamelCase_				,    mask_token=UpperCamelCase_				,    tokenize_chinese_chars=UpperCamelCase_				,    strip_accents=UpperCamelCase_				,    **UpperCamelCase_				,    )

           __magic_name__      				=    json.loads(self.backend_tokenizer.normalizer.__getstate__() )
           if (
               normalizer_state.get('lowercase'				,    UpperCamelCase_ ) != do_lower_case
               or normalizer_state.get('strip_accents'				,    UpperCamelCase_ ) != strip_accents
               or normalizer_state.get('handle_chinese_chars'				,    UpperCamelCase_ ) != tokenize_chinese_chars
           ):
                  __magic_name__      				=    getattr(UpperCamelCase_				,    normalizer_state.pop('type' ) )
                  __magic_name__      				=    do_lower_case
                  __magic_name__      				=    strip_accents
                  __magic_name__      				=    tokenize_chinese_chars
                  __magic_name__      				=    normalizer_class(**UpperCamelCase_ )

           __magic_name__      				=    do_lower_case







    def 				a__			(		self :	Dict				,    UpperCamelCase_ :	Optional[Any]				,    UpperCamelCase_ :	Optional[int]=None ):





           '''simple docstring'''

           __magic_name__      				=    [self.cls_token_id] + token_ids_a + [self.sep_token_id]

           if token_ids_a:
                  output += token_ids_a + [self.sep_token_id]

           return output







    def 				a__			(		self :	int				,    UpperCamelCase_ :	List[int]				,    UpperCamelCase_ :	Optional[List[int]] = None ):





           '''simple docstring'''

           __magic_name__      				=    [self.sep_token_id]
           __magic_name__      				=    [self.cls_token_id]
           if token_ids_a is None:
                  return len(cls + token_ids_a + sep ) * [0]
           return len(cls + token_ids_a + sep ) * [0] + len(token_ids_a + sep ) * [1]







    def 				a__			(		self :	Dict				,    UpperCamelCase_ :	str				,    UpperCamelCase_ :	Optional[str] = None ):





           '''simple docstring'''

           __magic_name__      				=    self._tokenizer.model.save(UpperCamelCase_				,    name=UpperCamelCase_ )
           return tuple(UpperCamelCase_ )